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be more careful when printing to check for bad objects -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-01-13 Ben Wing <ben@xemacs.org> * print.c: * print.c (internal_object_printer): * print.c (enum printing_badness): * print.c (printing_major_badness): * print.c (print_internal): Clean up the part of the code that looks for things that might lead to crashing in the print code: -- Make the "badness" messages more consistent. -- Move the checks for circularities after the checks for bad memory, since the checks for circularities involve accessing memory (which could be bad). -- Add an extra check to see if the object's implementation structure is bad memory. -- Add extra check for object itself being a null pointer or implementation pointer being null. -- Add some extra comments to help in maintaining the code.
author Ben Wing <ben@xemacs.org>
date Wed, 13 Jan 2010 06:02:42 -0600
parents 04bc9d2f42c7
children 308d34e9f07d
line wrap: on
line source

/* Unexec function for Solaris 2.x
   Copyright (C) 1994 Sun Microsystems, Inc.

This file is part of XEmacs.

XEmacs is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

XEmacs is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: Not in FSF. */

#include <stdlib.h>
#include <stdio.h>
#include <dlfcn.h>
#include "compiler.h"

int unexec (char *new_name, char *old_name, unsigned int data_start,
	    unsigned int bss_start, unsigned int entry_address);
int
unexec (char *new_name, char *UNUSED (old_name),
	unsigned int UNUSED (data_start), unsigned int UNUSED (bss_start),
	unsigned int UNUSED (entry_address))
{
  if (dldump (0, new_name, RTLD_MEMORY) != 0)
    {
      fprintf (stderr, "unexec(): dldump(%s): %s \n",
	       new_name, dlerror());
      exit (1);
    }

  return 0;
}